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Observation of Macroscopic Quantum Behavior Using Opt-Mechanical System

Research Project

Project/Area Number 16K13855
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Atomic/Molecular/Quantum electronics
Research InstitutionThe University of Tokyo

Principal Investigator

Ando Masaki  東京大学, 大学院理学系研究科(理学部), 准教授 (90313197)

Research Collaborator MATSUMOTO Nobuyuki  
KOMORI Kentaro  
MICHIMURA Yuta  
ENOMOTO Yutaro  
NAGANO Koji  
WADA Shotaro  
Ooi Ching Pin  
KAWASAKI Takuya  
Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords量子的性質 / 巨視的物体 / 冷却 / 振動子 / 超精密計測
Outline of Final Research Achievements

The purpose of this research is to investigate quantum behavior of macroscopic objects. For it, we developed a small opt-mechanical oscillator comprised of a 15-mm scale bar-type mirror and Fabry-Perot cavities at the both edges of the mirror. We successfully operated the cavities stably, and obtained the first results of fluctuation spectrum. The fluctuation was larger than the fundamental limitations, such as optical quantum noise and thermal noise, by about 2-orders. However, we have made a significant step to realize this small-scale opt-mechanical system.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (15 results)

All 2018 2017 2016

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 5 results,  Acknowledgement Compliant: 2 results) Presentation (8 results) (of which Int'l Joint Research: 8 results,  Invited: 8 results) Book (2 results)

  • [Journal Article] Construction of KAGRA: an underground gravitational-wave observatory2017

    • Author(s)
      KAGRA Collaboration、ほか
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2018 Issue: 1 Pages: 1-23

    • DOI

      10.1093/ptep/ptx180

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ground-based low-frequency gravitational-wave detector with multiple outputs2017

    • Author(s)
      Ayaka Shoda, Yuya Kuwahara, Masaki Ando, Kazunari Eda, Kodai Tejima, Yoichi Aso, and Yousuke Itoh
    • Journal Title

      Phys. Rev. D

      Volume: 95 Issue: 8 Pages: 82204-82204

    • DOI

      10.1103/physrevd.95.082004

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Mirror actuation design for the interferometer control of the KAGRA gravitational wave telescope2017

    • Author(s)
      Michimura Yuta , Shimoda Tomofumi , Miyamoto Takahiro , Shoda Ayaka , Okutomi Koki , Fujii Yoshinori , Tanaka Hiroki , Barton Mark A , Takahashi Ryutaro , Aso Yoichi , et al.
    • Journal Title

      Classical and Quantum Gravity

      Volume: 34 Issue: 22 Pages: 225001-225001

    • DOI

      10.1088/1361-6382/aa90e3

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optical levitation of a mirror for reaching the standard quantum limit2017

    • Author(s)
      Michimura Yuta、Kuwahara Yuya、Ushiba Takafumi、Matsumoto Nobuyuki、Ando Masaki
    • Journal Title

      Optics Express

      Volume: 25 Issue: 12 Pages: 13799-13799

    • DOI

      10.1364/oe.25.013799

    • NAID

      130007510803

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] All-sky coherent search for continuous gravitational waves in 6-7 Hz band with a torsion-bar antenna2016

    • Author(s)
      Kazunari Eda, Ayaka Shoda, Yuya Kuwahara, Yousuke Itoh, Masaki Ando
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 1 Issue: 1 Pages: 1-8

    • DOI

      10.1093/ptep/ptv179

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] KAGRA and B-DECIGO2018

    • Author(s)
      Masaki Ando
    • Organizer
      YKIS2018a Symposium
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Observation of Gravitational Waves2017

    • Author(s)
      Masaki Ando
    • Organizer
      Japan-France Workshop “Neutron Star Mergers and Galactic Chemical Evolution”
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Science and Design of DECIGO and B-DECIGO2017

    • Author(s)
      Masaki Ando
    • Organizer
      ISGW2017: International Symposium on Gravitational Waves
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Science and Design of DECIGO and B-DECIGO2017

    • Author(s)
      Masaki Ando
    • Organizer
      The 2nd ASTROD International Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Science and Design of DECIGO and B-DECIGO2017

    • Author(s)
      Masaki Ando
    • Organizer
      The 3rd KAGRA International Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Status of TOBA for Low-frequency GW Observations2017

    • Author(s)
      Masaki Ando, et al.
    • Organizer
      Gravitational Wave Advanced Detector Workshop 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] KAGRA : a Gravitational-Wave Antenna in Japan2016

    • Author(s)
      Masaki Ando
    • Organizer
      Korean Physical Society Spring Meeting
    • Place of Presentation
      Daejon Convention Center (Daejon, Korea)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Space Gravitational-Wave Antenna: DECIGO and Pre-DECIGO2016

    • Author(s)
      Masaki Ando
    • Organizer
      GWPAW2016
    • Place of Presentation
      Cape Cod, Massachusetts (USA)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 重力波で見える宇宙のはじまり 「時空のゆがみ」から宇宙進化を探る2017

    • Author(s)
      ピエール・ビネトリュイ、安東 正樹、岡田 好惠
    • Total Pages
      368
    • Publisher
      講談社
    • ISBN
      9784065020272
    • Related Report
      2017 Annual Research Report
  • [Book] 重力波とはなにか2016

    • Author(s)
      安東正樹
    • Total Pages
      317
    • Publisher
      講談社ブルーバックス
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2019-03-29  

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